1320271 has 8 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 1208448.

The previous prime is 1320251. The next prime is 1320287. The reversal of 1320271 is 1720231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320271 - 2¹³ = 1312079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (179550).

2^1320271 is an apocalyptic number.

1320271 is a deficient number, since it is larger than the sum of its proper divisors (116129).

1320271 is a wasteful number, since it uses less digits than its factorization.

1320271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1320271 is about 1149.0304608669. The cubic root of 1320271 is about 109.7036375177.

The spelling of 1320271 in words is "one million, three hundred twenty thousand, two hundred seventy-one".